Genetics Final Exam Questions and Answers (RATED A)
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Course
Genetics
Institution
Genetics
Genetics Final Exam Questions and Answers (RATED A)Genetics Final Exam Questions and Answers (RATED A)Genetics Final Exam Questions and Answers (RATED A)Genetics Final Exam Questions and Answers (RATED A)The idea that a homunculus exists within the gametes was called:
preformationism
inheritan...
Genetics Final Exam
Questions and Answers
(RATED A)
,The idea that a homunculus exists within the gametes was called:
preformationism
inheritance of acquired characteristics
pangenesis
blending inheritance - ANSWER preformationism
Synapsis refers to:
dyad formation
side-by-side alignment of non homologous chromosomes
side-by-side alignment of homologous chromosomes
monad movement to opposite poles
chiasma segregation - ANSWER side-by-side alignment of homologous chromosomes
A chromosome with a centromere in the middle is called:
submetacentric
telocentric
metacentric
homologous
acrocentric - ANSWER metacentric
During which cellular division does reduction occur:
cytokinesis
meiosis II
meiosis I
mitosis - ANSWER meiosis I
,Temperature can affect the phenotype of an individual
T/F - ANSWER True
Pleiotropy occurs when one gene:
masks the effect of another gene
impacts different aspects of the overall phenotype
has reduced penetrance
is influenced by the environment to determine the overall phenotype - ANSWER impacts different
aspects of the overall phenotype
During which phase do homologous chromosomes separate?
prophase I
mitosis
prophase II
anaphase I
anaphase II - ANSWER anaphase I
Model organisms can not be used to understand complex genetic organisms like humans.
T/F - ANSWER False
An autosomal recessive trait is expected to skip generations in a family.
T/F - ANSWER True
, You would expect all sons of a female with an X-linked recessive disorder to be affect.
T/F - ANSWER True
In an organism with 16 chromosomes in somatic cells, how many chromosomes are expected in each
gamete ?
4
64
16
8
32 - ANSWER 8
Which of the following statements best describes the major difference between sex determination in
Drosophilia (fruit fly) and in humans?
In Drosophilia, the absence of a Y chromosome determines maleness while in humans the presence of
the Y chromosome determines femaleness
In Drosphilia, the ratio of X chromosomes to the number of haploid sets of autosomes determines the
sex while in humans the presence of the Y chromosome determines maleness
In Drosophilia, the ratio of X chromosomes to the number of haploid sets of autosomes determines the
sex while in humans the presence of at least two X-chromosomes determines femaleness
In Drosophilia, the absence of a Y chromosome determines femaleness while in humans the presence of
a Y chromosome determines maleness. - ANSWER In Drosophilia, the ratio of X chromosomes to the
number of haploid sets of autosomes determines the sex while in humans the presence of the Y
chromosome determines maleness
Sex limited traits are:
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